Single, childless teacher who lived in a modest £400,000 semi was a secret millionaire who built a £7million fortune from share investments - and has left it all to cancer charities after he died aged 90

Grahame Pincock, 90, lived in a modest semi-detached home in Glasgow

But he covertly amassed £7,049,939 estate, mainly from stocks and shares

He left thousands of pounds to numerous charities, according to his will